... fan, imported cool wind machine head, Solenoid Valve, ALCO filter, High and low voltage Table, Denver silk expansion valve, ... Actual volume:120L Material: inner SUS316L,thick 3mm Outside layer SUS304L, thick 3mmDielectric insulation: Polyurethane foamConstruction: open cover ... System 1 setPressure display:a) One stage filter pressure, two stage filter pressure b) Refrigeration units of low pressure ...